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Fastest way to check if a file exist using standard C++/C++11/C?
... return ( access( name.c_str(), F_OK ) != -1 );
}
inline bool exists_test3 (const std::string& name) {
struct stat buffer;
return (stat (name.c_str(), &buffer) == 0);
}
Results for total time to run the 100,000 calls averaged over 5 runs,
Method exists_test0 (ifstream): **0.485s...
How do you remove the title text from the Android ActionBar?
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edited May 3 '19 at 9:02
Nilesh Rathod
52.4k1313 gold badges8282 silver badges105105 bronze badges
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How do I change bash history completion to complete what's already on the line?
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edited Apr 17 '15 at 10:43
Uri
19.2k66 gold badges3636 silver badges6060 bronze badges
answered Jun 23 ...
How do I get around type erasure on Scala? Or, why can't I get the type parameter of my collections?
...[T]) else None
}
}
}
scala> Registry.register("a", List(1,2,3))
scala> Registry.get[List[Int]]("a")
res6: Option[List[Int]] = Some(List(1, 2, 3))
scala> Registry.get[List[String]]("a")
res7: Option[List[String]] = None
When storing an element, we store a "Manifest" of it too....
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Limit ggplot2 axes without removing data (outside limits): zoom
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Hadley explains this on pp. 99; 133 of his ggplot2 book (1st edition), or pp. 160 - 161 if you have the second edition.
The issue is that, as you say, limits inside the scale or setting ylim() causes data to be thrown away, as they are constraining the data...
Is there an “exists” function for jQuery?
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43 Answers
43
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Dealing with “Xerces hell” in Java/Maven?
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There are 2.11.0 JARs (and source JARs!) of Xerces in Maven Central since 20th February 2013! Se...
Length of string in bash
...tlen "$myreal"
will answer:
Généralités has 11 chars, 14 bytes: ($'G\303\251n\303\251ralit\303\251s').
Nota: According to Isabell Cowan's comment, I've added setting to $LC_ALL along with $LANG.
Length of an argument
Argument work same as regular variables
strLen() {
local bytlen srea...
How do I programmatically shut down an instance of ExpressJS for testing?
...tunately, app.listen returns the server instance.
var server = app.listen(3000);
// listen for an event
var handler = function() {
server.close();
};
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